From 2c6be93fa98aeb0dd3c1efa2db201232eb8eefba Mon Sep 17 00:00:00 2001
From: Jason Simmons <jason-simmons@users.noreply.github.com>
Date: Wed, 14 Nov 2018 14:21:17 -0800
Subject: [PATCH] Clean up stale cache entries in Skia's GrContext (#6859)

Fixes https://github.com/flutter/flutter/issues/24160
---
 shell/common/rasterizer.cc | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/shell/common/rasterizer.cc b/shell/common/rasterizer.cc
index 9f3317912..67aa016c8 100644
--- a/shell/common/rasterizer.cc
+++ b/shell/common/rasterizer.cc
@@ -16,6 +16,10 @@
 
 namespace shell {
 
+// The rasterizer will tell Skia to purge cached resources that have not been
+// used within this interval.
+static constexpr std::chrono::milliseconds kSkiaCleanupExpiration(15000);
+
 Rasterizer::Rasterizer(blink::TaskRunners task_runners)
     : Rasterizer(std::move(task_runners),
                  std::make_unique<flow::CompositorContext>()) {}
@@ -186,6 +190,9 @@ bool Rasterizer::DrawToSurface(flow::LayerTree& layer_tree) {
       external_view_embedder->SubmitFrame(surface_->GetContext());
     }
     FireNextFrameCallbackIfPresent();
+
+    surface_->GetContext()->performDeferredCleanup(kSkiaCleanupExpiration);
+
     return true;
   }
 
-- 
GitLab